查询词典 base course

I think molecular biology is one of the course that is the hardest to learn. And it is also the most base course to the special biotechnology. I like learning it best because it has challenge.

我认为分子生物学是生物技术专业课程里最难学习的一门课程，也是我们生物技术专业的基础。

Combined with the condition of crack in concrete construction, the author analyzes the causes of cement stabilized sand gravel base course crack from dry shrinkage of mixture,temperature contraction,uneven settlement of roadbed and construction quality of base course,and introduces relevant preventive and control measures for it,which to ensure highway construction quality.

结合具体工程裂缝产生的状况，从混合料的干缩、温度收缩、路基不均匀沉降、基层施工质量四方面分析了水泥稳定砂砾基层裂缝的产生原因，并介绍了相应的裂缝预防控制措施，有利于公路建设质量。

Careful and detailed analyses were made on the causes for nonloading cracks in semirigid road pavements from the aspects of the subbase course,base course and bituminous surface course of a highway to discover the main factors causing these cracks.

本文通过从路面的底基层、基层和沥青路面三个方面对半刚性路面非荷载性裂缝产生的原因进行了细致分析，找出了裂缝产生的主要因素，并从设计和施工角度提出了一些减少裂缝、延长路面使用寿命的方法。

The semi-rigid base course has also been widely used as the pavement base and subbase in the high grade pavement construction because of the more powerful strength ,better stability and high rigity.

而半刚性基层具有强度高、稳定性好及刚度大等特点，被广泛用于修建高等级公路沥青路面的基层或底基层。

Connected with cross section patterns of freeway, the design method of drainable base course system and edge drainage system which meet to request are given too. The aggregate grading and mixture ratio of porous cement-treated macadam are obtained based on accurate survey on material properties and lots of laboratory experiments. After the construction of experiment road, a summary of mixing, spreading, roller compaction and maintenance process about subsurface drainage system is made, and the analysis on the cost of construction about drainable base course is also carried. According to the test of coefficient of permeability, porosity and strength of compression about local test samples and core samples, the paper concludes that main performance index of subsurface drainage system has achieved the design anticipated effect.

结合高速公路横断面型式，提出了适合要求的排水基层排水系统和边缘排水系统设计方案；在进行详细材料调查和大量室内试验的基础上，提出了多孔隙水泥稳定碎石基层的集料级配和混合料配合比；修建了路面内部排水系统试验路，根据试验路工程的施工情况，对路面内部排水系统施工的拌和、摊铺、碾压和养护工艺进行了总结；并对排水基层造价进行了分析；通过对现场取样试件、芯样的渗透系数、孔隙率和抗压强度的测试，证明路面内部排水系统的主要性能指标均达到了设计预期的效果。

About reprehensive base course parameters research, suggest that different disposal means must be used according to vary test data. According to the suggestion, the rule of design parameters varying along with age is found, and Henan provinces typical base course parameters reference table is put forward at last.

并在此基础上对数据进行处理分析，得出了河南省典型基层设计参数随龄期变化的规律，以及设计参数指标之间的相关关系，最终提出河南省典型基层设计参数推荐参考值。

Base course : The part of a road structure below the wearing course and above the road base.

基层：路面层之下路基之上的道路结构部分。

According to a great deal of tests, each mechanics property and anti-cracking performance of polypropylene fiber cement stabilized macadam were investigated systemically. The main content includes:(1) The formulae of shrinkage stresses of semi-rigid base course were deduced. This thesis analyzed each influencing factor of the maximum value of shrinkage stress and the cracking rule of semi-rigid base course. At the same time, the corresponding prevention measures of the cracks were presented.

通过大量试验，对聚丙烯纤维水泥稳定碎石的各种力学性能和抗裂性能进行了系统的研究，主要内容包括：(1)推导了半刚性基层收缩应力的计算公式，对影响最大收缩应力的各种因素及半刚性基层收缩裂缝产生的规律进行了分析，提出了相应的路面裂缝防治措施。

According to investigation results of slippage damage between base course and surface course in semi-rigid base asphalt pavements , damage characteristics and causations are analyzed , preliminary countermeasures are put forward ; Based on elastic multi-layer theory with Bisar programme used as calculation tool , shearing strength between base course and surface course and its influencing factors and regulations are analyzed ; DLG-A testing instrument is self-developed , through contrast tests and orthogonal experiments , skidresistance ability between base course and surface course is researched under conditions of different base courses , surface courses , gradations , disposal measures and temperature conditions .

论文根据半刚性基层沥青路面基面层滑移病害的调查结果，分析了病害特征和原因，提出了初步对策；以弹性层状体系理论为基础，以Bisar程序为计算工具，分析了基面层间剪应力以及影响基面层间剪应力的因素和规律；自行开发了DLG-A路面材料剪切试验仪，通过对比试验和正交试验，研究了不同基层和面层类型和级配、层间处理措施以及温度条件下的基面层间抗剪切能力，在此基础上。

Trecho {trekh'-o} apparently a primary verb (properly, threcho, cf 2359), which uses dremo {drem'-o}(the base of 1408) as alternate in certain tenses; TDNT - 8:226,1189; v AV - run 19, have course 1; 20 1 to run 1a of persons in haste 1b of those who run in a race course 2 metaph.

相关经文回前一页 5143 trecho {trekh'-o}显然是一字根型动词(适当地说是， threcho，参见 2359)，以 dremo {drem'-o}(1408 的字源)作为在某些时态时的替代字； TDNT - 8：226，1189；动词 AV - run 19， have course 1； 20 1 奔跑 1a 指人在匆促之间 1b 指参加赛跑中的人 2 隐喻。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。